Climatological Report (Daily)
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CDUS43 KLOT 250635
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
135 AM CDT TUE APR 25 2017


...................................

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR APRIL 24 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         73    307 PM  87    1990  63     10       78
                                      1915
  MINIMUM         40    517 AM  29    2015  42     -2       41
                                      1910
  AVERAGE         57                        52      5       60

PRECIPITATION (IN)
  YESTERDAY        0.00          2.05 1976   0.11  -0.11     0.00
  MONTH TO DATE    2.80                      2.66   0.14     1.18
  SINCE MAR 1      6.81                      5.16   1.65     4.52
  SINCE JAN 1     11.20                      8.68   2.52     6.59

SNOWFALL (IN)
  YESTERDAY        0.0           0.9  1910   0.0    0.0      0.0
  MONTH TO DATE    0.0                       1.2   -1.2      1.1
  SINCE MAR 1      7.8                       6.8    1.0      3.7
  SINCE JUL 1     26.1                      36.3  -10.2     31.2
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        8                        13     -5        5
  MONTH TO DATE  269                       420   -151      430
  SINCE MAR 1   1054                      1261   -207     1095
  SINCE JUL 1   4979                      5995  -1016     5103

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    9                         0      9        1
  SINCE MAR 1      9                         1      8        1
  SINCE JAN 1      9                         1      8        1
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION    SE (130)
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION    SE (130)
  AVERAGE WIND SPEED     7.7


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    86           300 AM
 LOWEST     20          1200 PM
 AVERAGE    53

..........................................................


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   63        87      1990
 MINIMUM TEMPERATURE (F)   42        27      1887


SUNRISE AND SUNSET
APRIL 25 2017.........SUNRISE   556 AM CDT   SUNSET   744 PM CDT
APRIL 26 2017.........SUNRISE   554 AM CDT   SUNSET   745 PM CDT


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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